Britax MARATHON CLASSIC, User Manual

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19
Installation: Rear-Facing
7 Position the shoulder portion of the vehicle
belt through the open lock-off, tighten belt,
close the lock-off arm (Fig. F), and replace the
cover.
• The lock-off is properly closed when a click is
heard.
• To prevent damage, never extend the lock-off arm
beyond its normal open position and always keep
the lock-off closed when it is not in use.
• If your vehicle is equipped with an automatic
locking retractor (ALR), use of lock-offs is not
required as long as the ALR is locked. Check
your vehicle owner’s manual to determine the
type of retractor your vehicle has, and how to lock
the retractor.
8 Verify that vehicle belt is tight and that the child
seat is secure.
• The child seat is secure when it cannot be moved
more than 1 in. (2.5 cm) front-to-back or side-to-
side at the belt path. If the child seat is not secure,
repeat the installation process or use an alternate
seating location.
• When properly installed in the rear-facing position,
the back angle of the child seat should be 30º – 45º
from vertical (not to exceed 45º) when the car is
parked on a level surface (Fig. G).
• If necessary, the proper recline angle can be
achieved by placing a rolled towel or pool noodle in
the vehicle seat bight to level the child seat’s base.
• Rear-facing installation can be improved by the
use of the Versa-Tether. See pages 29 – 32.
F
G
WARNING! Do not raise the child seat off the front edge of
the vehicle seat. This could cause your child seat not to perform as
intended.
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